how can i do this summation

I have two summation ,a=0 to a=m+1 and b=0 to b=n+1,where m=100,n=50.?

[Azzi Abdelmalek]

If m=2 and n=3 what should be the result?

[Mary Jon]

I am not need sum 3 with 2 to get 5 . I need summation from 0 to m+1,and from 0 to n+1,where n=50,m=100

[Azzi Abdelmalek]

Ok, show us the result for m=3 and n=2

[Mary Jon]

my function is M=sum(a=0 to a=m+1)sum (b=0 to b=n+1)(abs(fun(m)-fun(n)) I don't know result for m=3 and n=2

[Azzi Abdelmalek]

This is not clear

[Mary Jon]

MPD=(∑_(a=0, n+1)∑_(b=0,m+1)|(v_(i,j)^(k+1)-(v_(i,j))^(k) |))/((m.n))

[Azzi Abdelmalek]

a and b are not used in your sum. What are i and j? what is k?

[Mary Jon]

sorry sorry

MPD=(∑_(a=0, n+1)∑_(b=0,m+1)|(v_(a,b)^(k+1)-(v_(a,b))^(k) |))/((m.n))
k=1:88(as ex)

how do it (writing)

Answer 1

[Azzi Abdelmalek]

s=zeros(1,88);
for k=1:88
  for a=0:n+1
      for b=0:m+1
          s(k)=s(k)+v(a+1,b+1)^(k+1)-v(a+1,b+1)^k
      end
  end
end
s=s/(m*n)

Answer 2

[Azzi Abdelmalek]

m=100
out=sum(0:m)

Answer 3

[Walter Roberson]

Supposing that f(a,b) gives you the term you are summing, then

[A, B] = ndgrid(0:m+1, 0:n+1);
fAB = arrayfun(@f, A, B);
sum(fAB(:))

or

fAB = bsxfun(@f, (0:m+1).', 0:n+1);
sum(fAB(:))

[Mary Jon]

matlab error

??? Undefined command/function 'arrayfun'. ??? Undefined command/function 'bsxfun'.

 I am using matlab 7

[Walter Roberson]

MATLAB 7... you mean R14? Is it at least R14SP1 ?

[Mary Jon]

yes,I mean R14